This paper explores the possibility of developing an overall performance index to assess the performance of power distribution companies. In this paper, performance is seen as a broader concept than the traditional quality of supply, embracing the requirements of consumers and Brazilian legislation in relation to the service provided by power distribution companies.
The main goal of this study is to provide useful information and to start a discussion about the possibilities of developing an overall index. Thus, further work would certainly be necessary to complete the development of such index. A secondary goal is to present the Brazilian regulation related to the performance of companies in terms of service.